Question 268582
Solve graphically.
y=-1/3x-1
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Plot two points:
Let x = 0, then y = -1 giving you point (0,1)
Let x = 3, then y = -2 giving you point (3,-2)
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4x-3y=18
y = (4/3)x-6 
Let x = 0, then y = -6 giving you point (0,-6)
Let x = 3, then y = -2 giving you point (3,-2)
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{{{graph(400,300,-10,10,-10,10,(-1/3)x-1,(4/3)x-6)}}}
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Solution:  (3,-2)
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Cheers,
Stan H.